On Sat, Sep 24, 2016 at 4:35 PM, Cedric Blancher
<cedric.blancher@xxxxxxxxx> wrote:
>>
>> void *entry = parent->slots[offset];
>> int siboff = entry - parent->slots;
>
> If entry is a pointer to void, how can you do pointer arithmetic with it?
It's actually void **.
(That said, gcc has an extension that considers "void *" to be a byte
pointer, so you can actually do arithmetic on them, and it acts like
"char *")
> Also, if you use pointer distances, the use of int is not valid, it
> should then be ptrdiff_t siboff.
The use of "int" is perfectly valid, since it's limited by
RADIX_TREE_MAP_SIZE, so it's going to be a small integer.
Linus
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